In git https://github.com/pali/0xFFFF is preparing new 0xFFFF version, there is partial support for N950 and MKII protocol. And fixed autodetection of connected devices.

I played with libusb1.0, but that new library is slow as hell and unsuitable for flashing and cold-flashing. So we will stay with libusb0.1 until upstream fix it... Problem was reported 8 months ago and libusb developers ignore it... So do not expect working libusb1.0 support in near future.

New version 0.7 was released. There is partial support for Nokia N950 & N9, device identification via Mk II protocol (used for mmc flashing which is not implemented yet and in PC Suite mode) and couple of fixes...